I am having problems using it's reset pin, driving it from a host MCU. Based on the schematic here I connected a jumper at R2 but the XPD_DCDC (GPIO18) pin acts as an output at level high which makes it impossible to pull it down. I also tried to pull it down with a 1K resistor but the reset input still stays high.
The diagram shows a small 'X' on the XPD_DCDC but I couldn't find a place where the trace can be disconnected.
Any idea how to use make the RESET pin usable?
I also tried the ESP01 and the RESET pin works out of the box, but the module is slightly larger than the ESP03.